BiOI/BiVO4 p-n heterojunction with enhanced photocatalytic activity under visible-light irradiation | |
Department | 清洁能源化学与材料实验室 |
Xiang, Zhenbo1,2; Wang, Yi1; Zhang D(张盾)1; Ju P(鞠鹏)3; Zhang D(张盾) | |
2016 | |
Source Publication | Journal of Industrial and Engineering Chemistry |
ISSN | 1226-086X |
Volume | 40Pages:83-92 |
Abstract | A novel visible-light-sensitive BiOI/BiVO4 photocatalyst with a p–n heterojunction structure was synthesized through a facile coprecipitation method. The physical and chemical properties of as-synthesized BiOI/BiVO4 composites were characterized by XRD, XPS, BET, SEM, EDS, HRTEM, photoluminescence spectrum and UV–DRS respectively. The photocatalytic activity of the prepared photocatalysts was evaluated by photodegrading methylene blue and killing of Pseudomonas aeruginosa (P. aeruginosa) under visible light irradiation. The results showed that the 30%BiOI/BiVO4 (molar ratio of I:V = 3:7) exhibits the higher photocatalytic activity than the pristine BiOI and BiVO4. Moreover, the sterilization mechanism involved in the photocatalytic disinfection process was studied by captive species trapping experiments. The result revealed that hydroxyl radical (OH) and holes (h+) are the main reactive species for killing of P. aeruginosa under visible light irradiation. In addition, after five recycles for killing of P. aeruginosa under visible light irradiation, 30%BiOI/BiVO4 does not exhibit significant loss of photocatalytic activity. The results confirm that the synthesized 30%BiOI/BiVO4 photocatalyst has long-time reusability and good photocatalytic stability. The photocatalyst shows potential application in marine antifouling. |
Keyword | Bioi Bivo4 Photocatalysis Antifouling Visible Light |
Subject Area | 材料科学与物理化学 |
DOI | 10.1016/j.jiec.2016.06.009 |
Funding Organization | National Natural Science Foundation of China (Grant Nos. 51131008;41476068);National Key Basic Research Program of China (Grant No. 2014CB643304) |
Indexed By | SCI |
If | 4.421 |
Language | 英语 |
Funding Project | 光电材料与器件研究组 |
compositor | 第三作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/20315 |
Collection | 清洁能源化学与材料实验室 |
Corresponding Author | Zhang D(张盾) |
Affiliation | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, 7 Nanhai Rd, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, 19 Jia Yuquan Rd, Beijing 100039, Peoples R China 3.Chinese Acad Sci, Lanzhou Inst Chem Phys, Lab Clean Energy Chem & Mat, 18 Tianshui Middle Rd, Lanzhou 730000, Peoples R China |
Recommended Citation GB/T 7714 | Xiang, Zhenbo,Wang, Yi,Zhang D,et al. BiOI/BiVO4 p-n heterojunction with enhanced photocatalytic activity under visible-light irradiation[J]. Journal of Industrial and Engineering Chemistry,2016,40:83-92. |
APA | Xiang, Zhenbo,Wang, Yi,Zhang D,Ju P,&张盾.(2016).BiOI/BiVO4 p-n heterojunction with enhanced photocatalytic activity under visible-light irradiation.Journal of Industrial and Engineering Chemistry,40,83-92. |
MLA | Xiang, Zhenbo,et al."BiOI/BiVO4 p-n heterojunction with enhanced photocatalytic activity under visible-light irradiation".Journal of Industrial and Engineering Chemistry 40(2016):83-92. |
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1-s2.0-S1226086X1630(3890KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
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